Printing machine



Dec. 6, 1927;

B. D. CHAMBERLIN PHOTOGRAPHIC PRINTING MACHINE Filed Feb. 27, 1925 4 Sheets-Sheet 1 B ez zjamm D. Chamberlirb,

IN V EN TOR,

A TTORNEYS.

Dec. 16, 1927.

B. D. CHAMBERLIN PHOTOGRAPHIC PRINTING MACHINE 4 Sheets-Sfieet 2 Filed Feb 27, 1925 en'cunm Dflhamberluv' B J INVENTOR,

ATTORNEYS.

Dec. 6, 1927.

B. D. CHAMBERLIN PHOTOGRAPHIC PRINTING MACHINE Filed Feb. 27, 1925 4 Sheets-Sheet 5 F1 Bery'amim D. Chamberliw,

INVENTOR, WJ BY W ATTORNEYS.

Dec. 6, 1927. 1,651,752

8. D. CHAMBERLIN PHOTOGRAPHIC PRINTING MACHINE Filed Feb. 27, 1925 amifilldhamberlzln,

Belg INVENTOR,

. 6 72 BY @4 Emit- A TTORNEYS.

- blocksfil and 13 which are connected by a hinge-like joint consisting of arms 14 from section 12 which have elongated apertures 15 through which stub shafts 16 pass these shafts being supported by lugs' 17 on section 13. Section 13 has arms 18 with elongated slots 19 engaging a shaft 20 supported by the support 6. Thus, while-these parts. are hinged together the parts are permitted to moveor rock considerably/"with respect to each other. l also preferto face sections 12 and -13 withfelt, plush, or other compressible-material 21.

Bearing in mind thatthe sections 12 and 13 areindividually. rockable with respect to each other, the mechanism by which; they are individually, pressed against the panel will;

now beydescribed. ,Blocks 22 are cast at spaced-intervals.onsection 12.; These blocks hziye angulaiifaces23 supporting springs 24 to iyhicli ayoke25lis attached at their cenl;.-pa nd -.=i..sha ;t pa se' through the yoke 25 and carries rollers 27 ii'hich engage h .iei id ae s-fifivferm d e 1N @referabiy. ta. ,part of.- secti on 12.

P$ MPQD y ke .5 and; eni i s .2 5 which in t rn distributes the; pressure: p n

In order to platei l to provide rollerstops in the io rm of pins12 7 passing.tl roug". tie guideways 28 just -above the normal position of "rest for the rollers 2Z, whic h contacting with 27' raise the'platen. I Toggle; S prefera bly. cons i sts 0f two pairs o f 30739 ,.a'1i d.- 31?31. The former links 30 --3O being fca r ried by, shaft 126 and being attached to each 'otherlbygstuds. 32.

Links v31- 3l are. carried, by shaft '10, and

one'of the links 31 "i s l. attac1ied at 33? to link Link 3 3. is piivpted at 34 to an arm 35 carried by a shaft-36 supported by bear-Y ing 3'f in .sup i'tyi; mud-38in, bracket 39. An operatin ever i Oisaflixed' to. shaft 36 andisprovided with a handle 41. By mo\' ing handle 41thetoggle 8 is moved. vToggle 9 consists of alower link 42 pivoted to yoke 43 by shaft 44 supported upon springs 45 which reston, blocks 16 of platen section 13. This section cari ries'ig iideways 47in lugs 48 with which rollers 49 on shaft 44 cooperate. Roller stops'49- pass through guideways- 417. There isonlya single lower link 12;which passes freely between links 3( 30. A: pair of upper links 5050 are attached to link 42 by a pivot 51 and these links are free to move betwenlinks 3131. Link .42 difi'erslfrom the other links in having twosto ps 52 and 53, the former limiting themovement of :toggle 9 outwardly, stopping the parts in the position shown in Fig.1. The other stop, 53 is carried on the endof an arm 54, one side of which forms a cani 55. The major portion 56 of the cam Obvi-.

0115 y' pressure applied to shaft 26 =eir erts.

is concentric with shaftlO and the remaining portion 57 is substantially concentric with pivot 51. Cam is a gu'ideway for the cam follower 58 in this case aroller carried by the shaft 59 extending between brackets 60 attached to links 31-31.

I prefer, as shown in Figs. 11 and 12 to make the stop a resilient or compressible one to reduce and noise. Consequently the stop 53 may consist of a leaf spring 54' attachedto cam .56 by screws'56" and countersunk in cam 56 so as to provide a smooth guidewayior roller 58. A curved erid 57' may besuitabIy shaped to engage rolleri38. Links 31-31 are connectedtogether by a yoke This permits liriks:3131 to swing about links 5050.until engaged a yoke 61 after .which both sets of links are moved together (see dot and dash lines Fig. 1)., When, however, the links 31-31, 50%50 separate, their relative movement; s. controlled ;by, tlieycain ,and roll; AS

i oller .58 moves [on cam, port on (th' to their inoperative) ojqbni si tions being indiea'td ,in Fi s. In: Fi s, 6, 71 and 8. link" v 50 11:- di under linksi31', being; engaged" '61. Thustlie fmo ve'ment fofJtogglei 9 is controlled in both opening anddosjng' byjtogg'le; 8, aiid the on'er' 531 and ca ssion); jai lb-s ma; tion' 2 connection between th j two tog-'gles; v

-I.prefer tou's'e a' lifting spring '10 to coun-' lei-balance" the weight of the platen and using a spring of the proper strength the mechanism may be'vrii a'de to funfction with very little effort, Spring is, refer'ably arranged as shown in Fig. 13 wit [the ends coiled about shaft "20 the central portioh being looped about toggle link 42 being retained beneath the pin 71, and the ends of the-spring being caughtupon pins 72 of arm 73 which support the'platen hinge pintle or shaft 20. 3

In 9 and 10 I show a preferred form of operating handle,- arra'nged so tliat the operating handle position may be altered to suit the individual operator. In this enibodiment the handle 41 is carried by the arm 40 as above described, but this arm has a bearing which may turn upon shaft 36. A segment 81 carrying. apertures 82, and having an aperture 83 surrounding shaft 36 is keyed to the shaft at 84 so as to turn with it. .-\rm 40 is tapped at 85 to receive the-screws 86 which may be easily removed or inserted so as to position the handle 41 at any desired angle; a tall operator generally preferring lU-II toplace the handle in a substantially vertical position (when the platen is lowered) whereas a" shorter operator may lower the handle to the desired angle.

In side of the lamp house 4 there are a series of slots adapted -to receive sheets of light difi'using material such as ground glass, opal glass or-the like; The slots are carried in a rack 91 and maybe reached through'a door '91 operated through "a handle 92' when'the rack is intheproper position.-";-The 'positi'onoftherack is adjusted in 'tlieil following "manner: Rack 91' is supported by straps- 915 which carry the lamp platei94 upon whichthe sockets 95 are mou n'tedand'the frame'thus formed by rack 91- as' the top, plate 94 as the'bottom and str'ap's 93'as the-sides is 'slidable uponmollers 96'1'ca'rriedby bolts 97 These rollers engage theedges 98 -'of*straps' -;93. One strap has a rack 99 eng'aged-fbya latch; 100-pressed by -sprifig"'101 -i11t0 the rack 1i The latch I is pivbted' to *a' shaft lO2' operableby a handle 1"03 (ilitside' "of the easin A' sec'ond handle 104 through sliaft105movesflever: arm' l06 coi'inectd bya link IO'L pivotediat 108 to the lever I and at- "109 toj rack QlJ- Thus when latch 100 isreleasedhidrhfthrack 9 9 handle iM iinaybe mbved to adjust theilamps s 'aii'd,the'rack erg che l'lppeim'ostposition en-wil in '1 dashed lines 'fFigfi 'l and the lciweiino'stj'position being shownzi'n-dot and dash li1fes fin th'e? same figure l he light intensity mifl bei fi ltfed by 't hefiil ifiusing materia a'loii'e',l d1 by aherlng the distance between the lamps 3 and tlie{ "ntihg' panel eti b aaa'astiag mn cheaa s and the di flfigf 'ffiim ffiafl nsmilq o lo Jame :2 '"It i to ea"- iiiider stobd that wirilmthe maiehiiie illustratediii'f tlie drawing? and=fherei ri descr'lbedfis a Qpi'iafeirreW enlbp'diinent of my invention nevertheless aiiimero11s fotherem boili'ments' fiiay be rna'de' and 5 therefore de sire to' include 1 as {withiI'r the' 'scope of my invention all suehefii-Bodiments'as ma come withinule tens on-the arenasat thejend-of thi's' spcification'fi jl r 'r fHavinfithus 'described my invention, what lclaiin 'as new and'desire to secure by Let- :te's Patent is:

Iii sprinting machine; the combination wit a panel ,*of a platen 'movable there-ovei', niea s for 'jmoving"the"j-'platen "including a pairof toggles, andcoo'pe'rs'iting members on the toggles adapted to cause one-togglato operate inadv'zlnce' 6f the jot'h'e'r. Y: 1 Y 2. In aprintingmaching the' combination with a panel. of a platen movable thereover, "means for movingthe platen' including a pair 'of toggles"? means for" operating one toggle, and cooperating members "canned by the toggles for transmitting'moti'on from one toggle to the otheru 3. In a printing machine, the combination with a panel, of a platen movable thereover,

means for moving the platen incl iding a pair of toggles, each toggle including upper and lower parts, and means carried by the upper part of one toggle and the lower mem ber of the other toggle for permitting one toggle to be moved by the other.

4. In aprinting machine, the combination with a panel, ot' a platen movable thereover,,means for moving the platen including a pair of toggles. means for moving the toggles relative to each other including a cam on one toggle and a cam follower carried by the other toggle.-

5. In a printing machine, the combination with a panel, of a platen movable thereover, means for moving the platen including a pair of toggles, means for moving the toggles differentially relative to each other including a cam on one toggle and a cam follower on the other, the cam being shaped to limit the total movement of the toggles,

-,6. In a printing machine, the combination with a panel, of a platen movable thereover, meansfor moving the platen includinga pair of toggles, said toggles including a. pin; rality of links, a link on one toggle having. a stop to limit the movement of both -togglesui '1 '-ov -i 7. In a printing machine,-the combination with a panel; of a platen movablethereover, means for-moving the platen includingla pail-o f toggles, a-camon one toggle anda camffollower on the other, ;the cam haying one portion shaped to; move the toggle to-, gether when the cam and follower cooperate a-t;one:-portion of,tlie',cam, and having ans otherrportion shapedto permit onetoggle to move while the other toggle remainssta tionary when the cam/is-rengaged by'the -follower at the otherportion of the cam. I

.8. In a printinginachine thecombination with a panel, of aplaten movable thereover, menus for moving the platen including a pair of dissimilar toggles, means formoving one toggle, and means carried by this toggle for engaging and-moving the other-toggle differentially with respect to-the first mentioned toggle. v v v 9.-In a printing machine, the combination with a panel, of a platen movable therecver, means for moving the platen including a pair of toggles, and :1 common shaft.- about whieh one end of veach toggle may turIL 10. In a printing machine, the combination with a panel, of a platen movable thereover, means for moving the platen including a pair of toggles. and a shaft adapted to support one end of each toggle, iarts on the toggles beingadapted to cooperate when the first toggle is; moved whereby both toggles are moved between an operative and an inoperative position; I

11. In a printing machine, the combination with a panel. or a. platen movable there over, means for moving theplaten including toggle members, a frame and means on the frame for supporting one end of the toggles, and resilient connections between the platen and the other ends of the toggles.

12. In a printing machine, the combination with a panel, of a platen movable thereover, means for moving the platen including toggle members, a frame and means on the frame for supporting one end of the toggles, and spaced resilient members carried by the other ends of the toggles for engaging the platen atspaced intervals.

13. In a printing machine, the combination with a panel, of a platen movable thereover having guideways formed therein, means for moving the platen including toggles, a frame adapted to support the toggles at one end, and connections between the other ends of the toggles and the guideways.

14. In a printin machine, the combination with a panel, of a platen movable thereover" having guideways formed therein, means for moving the platen including toggles, a frame adapted to support the toggles at one end, and connections between the other ends of the" toggles' -and the guidewa'ys said connections including spring members positioned to normallyhold the toggles at the ends of the guideways. a Ina printing machine, the combination with a panel of a platen movable thereover, a g uideway included. in the platen, means for operating the platen including a toggle, a frame for supporting one end of the toggle, the other end of the toggle being supported in the guideway, and means for limiting-the movement of-the toggle in the guideway. I r

16; Ina printing machine, the combination with a panel of a platen movable thereover, a guideway included in the platen, means for operating the platen including a toggle, a frame for supporting one end of the toggle, the other end of the toggle being supported in the guideway, the part carrying the toggle end being adapted to move in the guideway, and a spring adapted to hold the part normally at one end of-the gnideway, said spring permitting the toggle to move the part in the guideway toward the platen.

17; In a printing machine, the combination with a panel of a platen movable thereover, a guideway included in the platen, means for operating the platen including a toggle, a frame for supporting one end of the toggle, the other end of the toggle being supported in the guideway, a yoke supported by the toggle end engaging the guideway and spaced springs supporting the ends of the yoke, the guideway in the platen being located between the springs.

, 18. In a printing machine, the combination with a panel, of a platen movable thereover said platen consisting of two sections hinged together, means for operating the platen including a pair of toggles, one toggle connected to each platen section, means for moving the platen sections differentially through the toggles, the relative movement of the toggles being controlled by a cam and a cam follower.

19. In a printing machine, the combination with a panel, of a platen movable thereover, means for moving the platen including a pair of toggl'es,-a' support for one end of the toggles and a slidable connection between the other end of thetogg-les and the platen.

20. In a printing machine, the combina tion with a panel,- of a pla'ten movable there over, means for moving the platen includin a pair of toggles, a support for one; end o tion with a paneL-of afplatenmovable thereover, means for moving-theiplaten including two wgglesasaidwito es h nga e pet'etia members through w job the toggles may be moved together and. through whigh rpne tog+ gle may move alone as-thapla'ten is move relative to the panel.

i g 23: In a Pr n g meeh n i he c mbin ti with a panel, of a platen i' oyablqthereover means for jmovinge the plater including two toggles; each ee ng :mad fun eta plurality of links; one ,toggle cons isting. .of pairs of spaced links adapted to permit-the links of the other-toggle-to movebetwen the spaced links as the platen is-moved relative to the printing panel,

24. In a printing machine, the-combinw tion with a panel, of a platen movabl e relative to the panel, means fonmovia gtheplaten including a togglenrechanism, a guide; way carried by the platen, andamember adapted to move in the guideway carried by the toggle, a spring normally moving the member toward oneend; of the guideway, said spring being ada-pted to be 'tensioned by the toggle.

25. In a printingmachine, the combination with a panel, of a platen movable relative to the panel, means for moving the platon including a toggle mechanism, a guideway carried by the platen, and a member adapted to move in the guideway carried by the toggle, and means associated Wltl1 the guideway for limiting the movement of the member movable in the guideway in two di rections.

loll

-limitingthe-movementotthe member movabledn'the guidewaya-in two directions, and

a spring tending to holdithe member mova'ble;in:,the g-uide vayat one end thereof,

27. In a -pi ;intingmachine, the comb nation-with; a\,printing panel, oli a platen zmovable thereover, means for -movingrthe platen including a pair of toggles, and means on n tse lstorpx v et ea tq lqt ing during a part of the movement of the other toggle.

28. In a printing machine, the combination with a printing panel, of a platen movable thereover, means for moving the plat en including a pair of toggles, and mechanism including an arm carried by one toggle and cooperating with the other toggle by which the toggles will be moved together and by which one toggle will be moved while the other toggle will be held stationary as the platen is moved to or from the panel.

29. In a printing machine, the combina tion with a printing panel, of a platen movable thereover, means for moving the platen including a pair of toggles, a power opei ated means for moving one toggle through a definite stroke to move the platen to or from the panel, and mechanism between the two toggles for moving the other toggle, during a portion of the stroke of the first toggle.

30. In a printing machine, the combination with a panel, of a platen movable thereover, said platen including two sections mov able relative to each other, means for moving the platen sections including toggles, and means associated with the toggles and operatedthereby for applying pressure to the platen sections at four spaced locations.

31. In a printing machine, the combination with a panel, of a platen movable thereover, said platen including two sections movable relative to each other, means for mov ing the platen sections including toggles, and means associated with the toggles adapted to contact with the platen sections at a plurality of spaced locations when the toggles are moved.

32. In a printing machine the combination with a panel, of a platen movable thereover, a toggle for operating the platen, a support for holding one end of the toggle, and a slideway on the platen with which the other end of the toggle cooperates.

33. In a printing machine, the combination with a panel, of a platen movable thereover, said platen consisting of two relative- 'ly moyable parts, means for moving the platen parts including two toggles, each toggle consisting of a pair of links, spacers for holding thepairs of links ofonetoggle apart a distance greater than the Width of the other toggle links whereby the last mentioned toggle may movebetween the spaced linksofthe first mentionedgtoggle. 5

34. In a printing machine, the combination with a panel, of a platen movable thereover, said platens-consisting. of. two. relatively movable. parts, meansgfor movingthe platen parts-including two toggles, each. toge s 1- een i t n pa r; of i s, hf l n otronetoggle ein gspaced to permittheliriks foflthe other toggleto functipn therebiejtween,

sh es-179, im ti -t e rme te the-fl ggles, both of said stops being carried 155 a single link of one of the toggles.

35. In a printing machine, the combination with a panel, of a platen movable thereover, said platen consisting of two relatively movable parts, means for moving the platen parts including two toggles, each tog gle consisting of a pair of links, stops for the toggles, one stop consisting of an abut ment adapted to be engaged by a toggle link, said abutment having a resilient member adapted to reduce the shock of the contactbetween the abutment and toggle member.

36. In a printing machine the combination with a panel, of a two part platen movable thereover, platen moving mechanism including toggle members each comprising a pair of toggle links, one link carrying acam, and another link a cam follower, the cam being shaped to cause the toggles to move together through a portion of an operating stroke wherein the cam follower moves over one portion of the cam, and being shaped to hold one toggle stationary while the other moves as the cam follower moves over another portion of the cam.

37. In a printing machine, the combination with a panel, of a two part platen movable thereover, platen moving mechanism including toggle members each comprising a pair of toggle links, and means including a power operated link pivotally attached to one toggle link for controlling the movement of all of the toggle links.

38. In a photographic printing machine, the combination with a panel, of a platen movable thereover, means for moving the platen comprising a pair of toggle members, a handle for operating the platen, connections between the handle and one of the toggles whereby one toggle may be operated by the handle, and slidable connections between the two toggles whereby the toggles may be di lerentially operated.

39. In a photographic printing machine, the combination with a panel, of a platen movable thereover, means for moving the platen comprising a pair of toggle members,

each consisting of a plurality of links, a handle for operating the platen, connections between the handle and one link of a togg and operative connections between the two toggles whereby the handle may be moved to move one toggle, and the other toggle may be moved through the operative connections between the toggle members.

40. In a printing machine, the combination with a panel, of a platen movable thereover means for moving the platen including a. pair of toggles, mechanism for moving the toggles includinga power operated member connected to one toggle, a lost motion con nection between the two toggles, the power tc gglei being adapted to move the tion with a panel, of a platen movable re'lative to the panel, means for moving the platen including a pair of toggles, one toggle consisting of two pairs of links, spacers for holding the links at a fixed separation, the spacers being of greater width than the width of the other toggle whereby the last mentioned toggle may"movebetween the spaced links of the first toggle. 4

Signed at Rochester. New York this 24th day of February, 1925.

BENJAMIN D. 

